<div class="bottom-nav">
    <a href="/" class="home-icon">
        <img src="{{ url_for('static', filename='home-icon.svg') }}" class="nav-icon" alt="首页">首页
    </a>
    <a href="{{ url_for('bookshelf') }}" class="bookshelf-icon">
        <img src="{{ url_for('static', filename='bookshelf-icon.svg') }}" class="nav-icon" alt="书柜">书柜
    </a>
    <a href="{{ url_for('profile') }}" class="profile-icon">
        <img src="{{ url_for('static', filename='profile-icon.svg') }}" class="nav-icon" alt="我的">我的
    </a>
</div>
